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. Author manuscript; available in PMC: 2012 Nov 1.
Published in final edited form as: Drug Alcohol Depend. 2011 Apr 22;118(2-3):216–223. doi: 10.1016/j.drugalcdep.2011.03.027

Table 2.

Multivariate Multinomial Logistic Regression of Marijuana Trajectory: Early Risk Factors in Adolescence§

Adolescent
Only vs. Abstainers
OR (95% CI)
Early Adult Decliners
vs. Abstainers
OR (95% CI)
Late Starters vs.
Abstainers
OR (95% CI)
Persistent Users vs.
Abstainers
OR (95% CI)
Males (n=455)
Social bond
-School bonds (0=med/high; 1=low) 1.13 (0.44, 2.91) 1.30 (0.67, 2.53) 0.84 (0.30, 2.37) 1.85 (0.91, 3.76)
-Family involvement (0=med/high; 1=low) 1.59 (0.74, 3.43) 0.74 (0.36, 1.54) 0.40 (0.13, 1.29) 0.97 (0.51, 1.82)
-Parental supervision (re: drug)
(0=high; 1=low)
1.14 (0.47, 2.77) 1.23 (0.60, 2.54) 0.84 (0.35, 2.02) 1.54 (0.72, 3.29)
Academic achievement in adolescence
-Math scores (49–136) 1.03 (0.99, 1.06) 1.02 (0.99,1.05) 1.00 (0.96, 1.04) 0.99 (0.95, 1.02)
-High school dropout
(0=graduate; 1=dropout)
0.56 (0.18, 1.78) 2.60 (1.30,5.20)** 1.42 (0.56, 3.60) 1.88 (1.02, 3.44)*
Females (n=495)
Social bond
-School bonds (0=med/high; 1=low) 1.25 (0.58, 2.70) 1.49 (0.51, 4.36) 1.28 (0.63, 2.63)
-Family involvement (0=med/high; 1=low) 1.74 (0.69, 4.42) 2.33 (0.83, 6.53) 2.00 (1.06, 3.77)*
-Parental supervision (re: drug)
(0=high; 1=low)
1.06 (0.53, 2.10) 1.99 (0.70, 5.67) 1.78 (0.96, 3.31)
Academic achievement in adolescence
-Math scores (60–136) 1.00 (0.98, 1.03) 0.99 (0.96, 1.04) 1.01 (0.97, 1.03)
-High school dropout
(0=graduate; 1=dropout)
1.69 (0.75, 3.79) 1.01 (0.28, 3.66) 2.30 (1.15, 4.60)*

Note.

*

p<.05;

**

p<.01

§

Mutlivariate models used multiple imputation (STATA ICE module) to account for missing data.